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JPS5662275A - Developing method - Google Patents

Developing method

Info

Publication number
JPS5662275A
JPS5662275A JP13793879A JP13793879A JPS5662275A JP S5662275 A JPS5662275 A JP S5662275A JP 13793879 A JP13793879 A JP 13793879A JP 13793879 A JP13793879 A JP 13793879A JP S5662275 A JPS5662275 A JP S5662275A
Authority
JP
Japan
Prior art keywords
change
voltage
lapse
developer
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13793879A
Other languages
Japanese (ja)
Inventor
Masaharu Okubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP13793879A priority Critical patent/JPS5662275A/en
Publication of JPS5662275A publication Critical patent/JPS5662275A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To obtain a uniform sensible image without change based on the lapse of time, by applying an AC bias voltage to the developing electrode and by changing the value of this AC bias voltage according to change of the developer based on the lapse of time.
CONSTITUTION: A drum form is formed with electrostatic latent image holder 1 and back electrode 2. Sleeve 3 is arranged oppositely to this holder 2. An AC voltage is applied from AC voltage power source between sleeve 3 and electrode 2. This AC voltage can change the bias value through variable circuit 8 connected to power source 5 according to degradation of developer 4. By changing the AC bias value in this manner, change of the sensible image density dependent upon change of developer 4 based on the lapse of time can be restrained to a minimum.
COPYRIGHT: (C)1981,JPO&Japio
JP13793879A 1979-10-25 1979-10-25 Developing method Pending JPS5662275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13793879A JPS5662275A (en) 1979-10-25 1979-10-25 Developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13793879A JPS5662275A (en) 1979-10-25 1979-10-25 Developing method

Publications (1)

Publication Number Publication Date
JPS5662275A true JPS5662275A (en) 1981-05-28

Family

ID=15210204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13793879A Pending JPS5662275A (en) 1979-10-25 1979-10-25 Developing method

Country Status (1)

Country Link
JP (1) JPS5662275A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127561A (en) * 1984-07-18 1986-02-07 Katsuragawa Denki Kk Developing method of electrophotography
JPS61183666A (en) * 1985-02-08 1986-08-16 Matsushita Electric Ind Co Ltd Developing method and developing device
JPS61200552A (en) * 1985-02-28 1986-09-05 Mita Ind Co Ltd Method and device for development
JPS61256356A (en) * 1985-05-10 1986-11-13 Hitachi Ltd Developing method
JPH0262560A (en) * 1988-08-29 1990-03-02 Ricoh Co Ltd Electrophotographic image forming device
US6671485B2 (en) * 2001-12-21 2003-12-30 Kabushiki Kaisha Toshiba Image forming apparatus
US7215904B2 (en) 2004-02-10 2007-05-08 Canon Kabushiki Kaisha Image forming apparatus group
JP2008122537A (en) * 2006-11-09 2008-05-29 Murata Mach Ltd Image forming apparatus and facsimile device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127561A (en) * 1984-07-18 1986-02-07 Katsuragawa Denki Kk Developing method of electrophotography
JPH0528380B2 (en) * 1984-07-18 1993-04-26 Katsuragawa Denki Kk
JPS61183666A (en) * 1985-02-08 1986-08-16 Matsushita Electric Ind Co Ltd Developing method and developing device
JPH0533794B2 (en) * 1985-02-08 1993-05-20 Matsushita Electric Ind Co Ltd
JPS61200552A (en) * 1985-02-28 1986-09-05 Mita Ind Co Ltd Method and device for development
JPS61256356A (en) * 1985-05-10 1986-11-13 Hitachi Ltd Developing method
JPH0262560A (en) * 1988-08-29 1990-03-02 Ricoh Co Ltd Electrophotographic image forming device
US6671485B2 (en) * 2001-12-21 2003-12-30 Kabushiki Kaisha Toshiba Image forming apparatus
US7215904B2 (en) 2004-02-10 2007-05-08 Canon Kabushiki Kaisha Image forming apparatus group
JP2008122537A (en) * 2006-11-09 2008-05-29 Murata Mach Ltd Image forming apparatus and facsimile device

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